HAVIT Portable Wireless Bluetooth Speaker with Hands-free Calling FM Radio (M80) High-Fidelity Sound - The very latest Bluetooth 4.0 technology to maximize device compatibility and pairing speed. Holds The Longest Charge - built-in 1800mAh rechargeable Li-ion battery, up to 5 hours playing time , enjoy for long hours of wireless fun. Super Lightweight, Perfectly Portable - You should enjoy your music anywhere, that's why we made this. Easy to control - Big LED display, 360 degree volume rotary knob , Remote controller, easy to control and music choosing. Broad Compatibility - Pairs With Any Bluetooth Device! 4 Play Modes (Bluetooth, AUX, TF Card, FM radio).